1
The authorities shall decide in each individual case on the required water endowment and any other measures which may be necessary to protect waters below the point of withdrawal.
2
They may specify temporally variable required water endowments. Residual flows shall not fall below those specified in Articles 31 and 32.
3
The authorities shall consult the competent agencies before making their decision; in cases where the withdrawals in question concern hydropower plants with gross production in excess of 300 kW, they shall also consult the federal government.